edit for portal & tender

backend/prisma/migrations/20260603000000_add_tender_issue_number/migration.sql

@@ -0,0 +1,3 @@
+-- Add issue_number column for tenders + supporting index
+ALTER TABLE "tenders" ADD COLUMN "issueNumber" TEXT;
+CREATE INDEX "tenders_issueNumber_idx" ON "tenders"("issueNumber");

backend/prisma/schema.prisma

@@ -921,6 +921,7 @@ model Invoice {
 model Tender {
   id                  String    @id @default(uuid())
   tenderNumber        String    @unique
+  issueNumber         String?
   issuingBodyName     String
   title               String
   termsValue          Decimal   @db.Decimal(15, 2)
@@ -943,6 +944,7 @@ model Tender {
   attachments         Attachment[]
   convertedDeal       Deal?
   @@index([tenderNumber])
+  @@index([issueNumber])
   @@index([status])
   @@index([createdById])
   @@index([announcementDate])